github.com/dominant-strategies/go-quai@v0.28.2/metrics/cpu_enabled.go (about)

     1  // Copyright 2020 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  //go:build !ios
    18  // +build !ios
    19  
    20  package metrics
    21  
    22  import (
    23  	"github.com/dominant-strategies/go-quai/log"
    24  	"github.com/shirou/gopsutil/cpu"
    25  )
    26  
    27  // ReadCPUStats retrieves the current CPU stats.
    28  func ReadCPUStats(stats *CPUStats) {
    29  	// passing false to request all cpu times
    30  	timeStats, err := cpu.Times(false)
    31  	if err != nil {
    32  		log.Error("Could not read cpu stats", "err", err)
    33  		return
    34  	}
    35  	if len(timeStats) == 0 {
    36  		log.Error("Empty cpu stats")
    37  		return
    38  	}
    39  	// requesting all cpu times will always return an array with only one time stats entry
    40  	timeStat := timeStats[0]
    41  	stats.GlobalTime = int64((timeStat.User + timeStat.Nice + timeStat.System) * cpu.ClocksPerSec)
    42  	stats.GlobalWait = int64((timeStat.Iowait) * cpu.ClocksPerSec)
    43  	stats.LocalTime = getProcessCPUTime()
    44  }